EPA turns down states' request for ethanol waiver Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 8:24 a.m., Friday, November 16, 2012 EPA turns down states' request for ethanol waiver WASHINGTON (AP) — The Environmental Protection Agency has denied requests from several governors to waive production requirements for corn-based ethanol.